.list {
    display: flex;
    justify-content: center;
    height: 800px;

    align-items: center;
}

.people-choose {
    position: relative;
    margin-left: 30px;
    width: 200px;
}

.info-power {
    display: none;
    position: absolute;
    top: -350px;
    left: 0px;
    width: 200px;
    height: 800px;
    background-color: rgba(10,50,100,.4);
    color: white;
    font-size: 20px;
    justify-content: center;
    align-items: center;
}